skip to main content
logo

What is the incremental benefit of using a history of sudden loss of taste (ageusia) and/or smell (anosmia) in symptom screening to identify people who may have COVID-19 and need to take appropriate action?

 
Using a list of COVID-19-related symptoms as a screening tool can be used for those at high risk for COVID-19 (such as travellers passing through air, land and sea borders) and for the entire population (e.g., on entering schools, stores and workplaces). A recent study published in the journal Nature found that loss of smell (anosmia), skipped meals and fatigue are the three best predictors of COVID-19. We identified 17 evidence documents that provide highly relevant evidence to answer the question of what the incremental benefit is of using a history of sudden loss of taste (ageusia) and/or smell (anosmia) in symptom screening to identify people who may have COVID-19 and need to take appropriate action. We also identified experiences related to the question from five of the six countries examined and for all Canadian provinces and territories.
Rapid evidence profile: